Bradford White D4403S*F(BN Service Manual page 37

Damper Relay Installation (cont'd)
Step 9. Turn the damper on its side and lay it on top of the water heater.
Step 10. Remove the Red wire in the damper housing
from its location. Connect the 1/4" Red female connector on
the relay harness in its place.
Step 11. Remove the Yellow wire in the damper housing
from its location. Connect the 1/4" Yellow female connector on
the relay harness in its place.
Step 12. Remove the Blue wire in the damper housing from its location. Connect
the 1/4" Blue female connector on the relay harness in its place.
Step 13. Remove the White wire in the damper housing from its location. Connect
the 1/4" White female connector on the relay harness in its place.
Step 14. Using the White wire that was removed in Step
13, connect it to the piggyback spade connector that was
installed in Step 13.
Step 15. Connect the other ends of the relay harness, as
shown.
Step 16. Place the relay and its harness fully inside
the damper housing.
Damper Relay Installation
White Wire
Yellow Wire
Blue Wire
White Wire
Yellow Wire
Leave this Terminal
Open
Relay
Relay and
harness
Damper Housing
Blue Wire
Red Wire
Red Wire
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